What it means
F30036 is raised when the temperature inside the converter has exceeded the permissible limit value. The condition is detected in the Power Module; the drive coasts down (OFF2) and the fault must be acknowledged before it will run again. The fault value in r0949 records the details: on the S120 and S150 it is decoded bit by bit (see below), while on the G130, G150, G120 and G120XA the decimal value is meant only for internal Siemens troubleshooting.
Why it appears
- Cooling is insufficient or a fan has failed.
- The drive is overloaded.
- The ambient temperature is too high.
What to check
- Check the internal fan and whether it is running.
- Check the fan elements.
- Check whether the ambient temperature is in the permissible range.
The instruction manuals for the G115D and G120C list only the ambient-temperature check.
Reading the message value
- On the S120 and S150 the fault value in r0949 is interpreted binary; each set bit names the overheated area:
- Bit 0 = 1: Overtemperature in the control electronics area.
- Bit 1 = 1: Overtemperature in the power electronics area.
- Bit 2 = 1: Overtemperature in the processor area.
- Bit 3 = 1: Overtemperature in the processor area.
- Bit 4 = 1: Overtemperature when the internal fan is defective.
- Bit 5 = 1: Intake air overtemperature.
- On the G130, G150, G120 and G120XA the fault value in r0949 is interpreted decimal and is only for internal Siemens troubleshooting.
Parameters the manual names
- r0949 — fault value of this message: read it to see which area of the power unit overheated (binary decoding on the S120 and S150); on the other families the value is reserved for internal Siemens troubleshooting.
Acknowledging and restarting
The fault must be acknowledged immediately. It will not clear while the drive is still hot: the manual states it can only be acknowledged once the permissible temperature limit minus 5 K has been fallen below
. Remove the cause, let the drive cool below that limit, acknowledge the fault and restart.
What differs between the drive families
Straight from the manuals' own fields — F30036 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | IMMEDIATELY | Power electronics faulted (5) | Power Module | SINAMICS S120, S150 List Manual · p. 2951 |
| G130, G150 | OFF2 | IMMEDIATELY | Power electronics faulted (5) | Power Module | SINAMICS G130, G150 List Manual · p. 1661 |
| G120 | OFF2 | IMMEDIATELY | Power electronics faulted (5) | — | SINAMICS G120 · p. 914 |
| G120XA | OFF2 | IMMEDIATELY | — | — | SINAMICS G120XA PN converter · p. 1160 |
| G115D | — | — | — | — | SINAMICS G115D distributed drive · p. 396 |
| G120C | — | — | — | — | SINAMICS G120C Converters · p. 387 |
The drives this code lives on
F30036 is described for G115D, G120, G120C, G120XA, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F30036 mean on a SINAMICS drive?
The temperature inside the converter has exceeded the permissible limit value. The drive reacts with OFF2 and the fault must be acknowledged before it will restart.
Why can I not acknowledge F30036?
The power unit is still too hot. The manual states the fault can only be acknowledged once the temperature has fallen 5 K below the permissible limit, so let the drive cool down first.
What should I check when F30036 appears?
Check the internal fan and whether it is running, check the fan elements, and check that the ambient temperature is in the permissible range. An overload is also one of the listed causes.
What does the F30036 fault value in r0949 show?
On the S120 and S150 it is a binary word in which bits 0 to 5 flag overheating of the control electronics, power electronics, processor area, a defective internal fan or the intake air. On the G130, G150, G120 and G120XA the decimal value is only for internal Siemens troubleshooting.
Codes next to this one
Source
Written from Siemens' own List Manuals and operating instructions; every number, designation and parameter on this page is checked against them before publication.
All SINAMICS codes: fault and alarm codes · the F30xxx group · SINAMICS manuals · Siemens manuals